Master Riboflavin (Vitamin B2) with Picmonic for Medicine

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Riboflavin (Vitamin B2)

(Ribo) Ribs on Flavin-flav
Picmonic
Riboflavin, also known as vitamin B2, is a water soluble vitamin that is the central component of cofactors FAD and FMN. FAD (flavin adenine dinucleotide) is a cofactor involved in several redox reactions and can be reduced to FADH2 when it accepts two hydrogen atoms. This reaction is especially important in the citric acid cycle as FAD is a prosthetic group in the enzyme complex succinate dehydrogenase. FAD is reduced to FADH2 as succinate is oxidized to fumarate and the high-energy electrons are sent through the electron transport chain to produce 2 ATP. It is important to note that FADH2 can only produce 2 ATP as compared to NADH2, which can make 3 ATP through the electron transport chain. In humans, signs and symptoms of a riboflavin deficiency include cracked lips, inflammation of the lining of the mouth, and cracks at the corners of the mouth. The eyes may also become bloodshot, itchy, watery and sensitive to bright light. 
7 KEY FACTS
Vitamin B2
Two Viking (B) Bees in (2) Tutus

Riboflavin is also known as vitamin B2.

FAD
FAD-clock

FAD (flavin adenine dinucleotide) is a cofactor involved in several redox reactions and can be reduced to FADH2 when it accepts two hydrogen atoms. This reaction is especially important in the citric acid cycle as FAD is a prosthetic group in the enzyme complex succinate dehydrogenase.

FAD Makes 2 ATP
FAD-clock Powered by 2 ATP-batteries

In the citric acid cycle, FAD is reduced to FADH2 as succinate is oxidized to fumarate and the high-energy electrons are sent through the electron transport chain to produce 2 ATP. It is important to note that FADH2 can only produce 2 ATP as compared to NADH2, which can make 3 ATP through the electron transport chain.

Succinate to Fumarate
Sucker-snake Fuming

In the citric acid cycle, FAD is reduced to FADH2 as succinate is oxidized to fumarate.

Glossitis
Glass-tongue

Patients who are deficient in riboflavin (vitamin B2) may display glossitis, which is an enlarged, red, swollen tongue.

Cheilosis
Key-lips

Cheilosis includes symptoms of fissuring of the lips, inflammation of the lining of the mouth, and cracks at the corners of the mouth, and is characteristic of riboflavin deficiency.

Corneal Vascularization
Corn-eyes

Corneal vascularization is the excessive growth of blood vessels into the cornea and can cause the eyes to become bloodshot, watery, and sensitive to bright light. Corneal vascularization can be caused by riboflavin deficiency.

Unlock all 7 facts & definitions with Picmonic Free!

JOIN FREE

Take the Riboflavin (Vitamin B2) Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

START QUIZ NOW

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Ace Your Medical (MD/DO) Classes & Exams with Picmonic:

Over 870,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Medical (MD/DO) student study app.

Picmonic for Medicine (MD/DO) covers information that is relevant to your entire Medical (MD/DO) education. Whether you’re studying for your classes or getting ready to conquer the USMLE Step 1, USMLE Step 2 CK, COMLEX Level 1, or COMLEX Level 2, we’re here to help.

Works better than traditional Medical (MD/DO) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.